Coil-winding machine



E. F. CREAGER ET AL June 19, 1923.

COIL WINDING MACHINE "12 sheets-sheet 1' Filed Nov Mffiesss E, F.CREAGERET AL June 19, 1923.

COIL WINDINGMACHINE Filed Nov. 25 1918 l2 sheets-sheet 2 June 19, 1923.Y

. r E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25 1918 12sheets-sheet 5 ww om June 19; 1923.

E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25. 1918 12sheets-sheet 5 June 19, 1923.

- 1,459,013 E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25 1918'12 sheetsheet 6 aw n u n HLV. F [In nuwl nhwl E. F. CREAGER ET' AL June9, 1923.

COIL WINDING MACHINE Filed Nov. 25

1918 l2 sjggets-shegj; '2

.H m :m uhnfl -1 -rvi Il nnN u June 19, 1923.

E. F. CREAG'ER ET AL.

- COIL WINDING MACHINE .Filed Nov. 25 1918 .12 sheets-sheet 8 June 19,1923.

E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25 1918 12sheets-sheet 9 wmnuuhhl u Hahn H MAK u W June 19, 1923.

, 1,459,013 E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25 191812 sheets-sheet 10 E. F. CREAGER ET AL COIL WINDING MACHINE June 19',1923. 1,459,013

Filed Nov. 25 1918 12 sheets-shee t 11 38/ ZE -ji Jung 19, 1923.1,459,013

E. F. CREAGER ET AL COIL WINDING MACHINE Filed Nov. 25 1918 12sheets-sheet 12 Patented June 19, 1923.

EDWIN F. CREAGER AND SAMUEL ROGERS, O ANDERSON, INDIANA, ASSIGNORS TOTHE REMY ELECTRIC COMPANY, A CORPORATION OF INDIANA.

COIL-WINDING MACHINE.

Application filed November 25, 1918. Serial No. 263,989.

Ti; aZZ w l'wm it ma y concern:

Be it known that we, EDWIN F. Cnmenn and SAMUEL Rocnns, citizens of theUnited States of America, residing at Anderson, county of Madison, Stateof Indiana, have invented certain new and useful Improvements inCoil-Winding'Machines, of which the following is a full, clear, andexact description. I

This invention relates to machines for winding coils of wire, andparticularly for forming inductive windings. of electrical apparatus,consisting of' a plurality of layers of wire insulated from one another.The principal objects are to provide means for manufacturing a coilhaving successive layers of wire-windings separated by insulating tubes,each tube comprising a plurality of layers formed from a relatively widesheet of insulating material, without cutting the sheet into thedifferent lengths required for the tubes prior to the forming of thelatter, to insure attention on the part so as to avoid the vuse-ofimperfect insulating material, and to provide controlling olevices whichinsure a uniform product with a large capacity production.

Other and further objects and advantages of the present invention willbe apparent from the following description, reference being had to theaccompanying drawings, wherein a preferred embodiment of the presentinvention is clearly shown.

In the drawings:

Figs. 1 and 2 taken together form a plan view of the coil windingmachine embodying the present invention.

Fig. 3 is a sectional view taken on the line 33 of Fig. 1.

Fig. 4 is a longitudinal sectional view of the head stock shaft taken onthe line 4-4 of Fig. 1.

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 1.

Fig. 6 is a sectional view taken on the line 6-6 of Figs. 1 and 2.

Fig. 7 is a sectional view taken on the line 77 of 1 and 2.

Fig. 8 is'a sectionalviewtaken on the line 8-8 of Fig. 7.

Fig. 9 is a plan view of the hand wheel shaft assembly. -Fig. 10 is anend view of the shaft assembly, shown in Fig. 9 looking in the directionof the arrow 10.

Fig. v11 is a sectional view taken on the line 1111 of Fig. 9. Fig. 12is a plan view of the coil separating mechanism.

Fig. 13 is an end view of the coil winding machine, certain parts beingshown in Fig. 14 is a front elevation of the tail stock and partsassociated therewith.

Fig. 15 is a sectional view taken on the line 15-15 of Fig. 14.

Fig. 16 is an enlarged scale sectional view taken on the line 16-16 ofFig. 2, certain parts being omitted for the sake of cle'arness. 'Fig. 17is a longitudinal sectional view of the coil winding spindle. of theoperator to the forming of the tubes Fig. 18 is an end view of thespindle looking-in the direction of the arrow 18 in Fig. 17..

Fig. 19 vis a sectional view taken on the line 1919 of Fig. 17.

Fig. 20 is a sectional view taken on the line 20-20 of Fig. 17.

Fig. 21 is a side elevation of devices for.

carrying the paper and spools of wire which are to be wound on thespindle.

Fig. 22 is a front elevation of the parts shown in Fig. 21.

Fig. 23 is a wiring diagram, certain of the controlling devices beingshown in connection therewith. v

Descfiptz'on 0;" power devices and chat'ch.

Referring to the drawings:

50 designates a base upon which the parts ports a rotatable andlongitudinally slidable clutch disc 56 carrying a contact rings 57 .ofleather or other suitable friction material, which contactswith the disc54 when the clutch is engaged. The slidable clutch member 56 is formedwith a pulley groove 56 and a second groove. 58.

gamma of catch.

- A fork lever 60 journalled upon a pin 61 which is fixed upon the frame51, carries shipper yokesegments 59 which ride in the groove 58 formedin the member 56. A spring 62 is connected to the frame 51 at 63 and tothe lever 60, and said spring 62 tends to move the lever 60 in such adirection as to cause the separation ofmembers 54 and 56'.

Movement is imparted to the lever 60 by means of a hand lever 65 whichis pivoted at 66. Said pivot 66 may be some point on the bench 40, whichsupports the base 50, but for the sake of clearness' is not shownlocated in this manner in Fig. 4.---

link 67 is connected with the lever 65, and a screw threaded portionpasses through bar 68. The relation of the link 67 to the bar 68 may beregulatedby means of nuts 69, 70 and 71. The bar 68 is connected bymeans of springs 72 and 73 with the lever 60.

Another means of moving the lever 60 comprises the solenoid armature 75,which cooperates with the solenoid, magnet 7 6. sup

ported by a frame 77, said frame being mounted upon the bench 40.

. A still further means of moving the lever 60 consists of an L-shapedbar 80, see Figs. 1, 3 and 4. The bar is pivotally mounted upon a pin 81which is carried by a block 82 mounted upon the frame 51. connected atone end to the bar 80 and passes through a hole 84 in the lever 60. Nut86 threaded onto the end of link 83 and the portion of the bar 80contacting with the nut are formed with complemental spherical surfaces85. A lock nut 87 cooperates with the nut 86 to maintain the nut 86 infixed relation with the link 83. a

The free end of the bar 80 is provided with a slotted hole 88 whichcooperates with a pin 89 carried by a lever 90. Lever 90 is fixed upon ashaft 91, said shaft 91 being journalled upon a block 92 carried by theframe 51. Upon the upper end of the shaft 91 is fixed a lever 93. Lever93 carries pins 94 and 95 which cooperate, respectively, with w thegrooved ends of stop screws 96 and 97 which are mounted upon the frame51 in such a manner as to be slidablein a direc- 0 tion parallel withthe head stock shaft 53.

The stop screw 96-carries stopnuts. 98 and the screw 97 carries stopnuts 99. It is apparent therefore that any object moving in a directionparallel with the stop screws 96 A link 83 is ,with

ment would be imparted to the lever 80 and the lever 60 Wire feedingmechanism; I

A sleeve 100 is slidably mounted, upon the I shaft 53 and is held infixed rotative relation therewith by means of the key 101. Sleeve 100-carries gears 102 and 103. A plunger 104'is carried by the sleeve 100and is yieldingly pressed against the shaft 53 by means of a spring 105.The shaft 53 is provided with longitudinally spaced notches 106 and 107withwhich the plunger 104 cooperates to yieldingly lock sleeve 100 inone of two positions; relative to the shaft 53. A washer 108 is securedupon the end of the shaft 53 by means of the screw 109 and serves tolimit the movement of the sleeve 100 in one direction. Hand wheel 110provided with a handle 111 is secured upon the sleeve 100 by means of apin 112. By means of the hand wheel the shaft 53 may be manually rotatedif desired, and sleeve 100 be moved longitudinally of the shaft 53- toeither of the positions determined by' the notches 106 the arrows 126,127 and 128. It is apparent that the speed ratio between the feed screwshafts and and the shaft 53 can be varied by shifting the sleeve 100axially of' theshaft 53 in order to bring gear 102 into mesh with gear121 or gear 103 into mesh gear 122. Hereafter the feed screw shafts willbe referred to as screws.

A feed nut having screw threaded surfaces 131 and 132 which are adaptedto engage with feed screws 125 and 120, respectively, is mounted uponthe feed nut rod 133.

Lever 135 is pivoted at one end upon a pin 136 carried by nut shiftingcam shaft bracket 137. Bracket 137 supports for rotation nut shiftingcam shaft 138 carrying at one end a gear 139 and atthe other end the nutshifting cam 140. Cam 140 is provided with a cam race 141 whichcooperates with the 65 and 97 which should strike the stop nuts roller142 rotatably journalled upon the pin 143 carried by the lever 145. Thelink 134 I is provided with sleeves 144 and 145, and with springs 146and 147 which are located respectively between sleeves 144, and 145, andnuts 148 and 149 which have screw threaded engagement with the link 134.When the lever 135 is in the position shown in Fig. 3, the nut 148 maybe adjusted along the link 134 in order to put the proper amount ofcompression in the spring 146 whereby the sleeve 144 will be yieldinglyheld in engagement with the lever 135, and the nut 130, in yieldingengagement with the screw 125. Likewise after moving the cam 180 fromthis position shown in Fig. 3, the

nut 149 may be adjusted whereby to place compression in the spring 147in orc'lerthat the sleeve 145 may be yieldingly pressed against thelever 135. In this manner the nut 130 will be held'yieldingly againstfeed screw 120. Look nuts 150 and 151 are employed for holding the nuts148 and 149, re-

spectively, inadjusted positions on the link 134.

. The feed nut rod 133 has a reduced outer end portion 153 upon whichare mounted a collar 154 and hub 155 to which is fixed a bar 156. Therod133 may be rotated with "thereon. The wheels 163 are located withrespect to one another and to the rod 160 by means of sleeves 164 and165 which are prevented from movement relative to the rod 160 by meansof set screws 166.

Arbor tail stock. Referring to Figs. 2,13 and 14, 170 designates thetail stock frame which is mounted upon the base 50 and supports thebracket 162 which has just been described. Frame 170 supports a nut 171in which is mounted a screw 172 which may be turned by means of a handwheel 173. The nut 171 carries the tail stock pin 174. While the nut 171is in-position in the frame 170, hole 175 .is bored at right angles tothe axis of the nut 171, and in this hole 17 5' are located clampingmembers 176 and 177, the former having screw threaded engagement and thelatter having sliding engagement with the screw 178 provided with a handwheel 179. The

presence of the clamping members 176 and 177 within the hole 175prevents longitudinal and rotative movement of the nut 171 with respectto the frame 170. By turning position and to prevent accidental movementof the hand wheel 173.

By referring to Fig. 4, it will be seen" that the head stock shaft 53 isprovided with a tapered end portion 53, and it will beunderstood thatthe shaft 53 and the pin 174 are located in exact alinement with oneanother.

, 00a winding Mm. Referring now to Fig. 17, 180 designates as a wholethe coil winding arbor, which includes arbor shaft 181 having conicalrecesses 182 and 183, by means of which the shaft 181 may. be journalledupon the head stock shaft 53 and the tail stock pin 174. Shaft 181. isgenerally rectangular in cross section as shown in Figs. 19 and 20,butis providedwith plain cylindrical portions 184 and 185 and a screwthreaded cylindrical portion 186. A nut 187 cooperates with the screwthread 186 and supports half-ring members 188 and 189 which are adaptedto project into a groove 190 formed upon the half-shell portion 191. Thehalf-shell portion 191 has a cylindrical outer surface but is providedwith a rectangular groove 192 into which projects a portion of the bar181; The bar 181 is provided with notches 193 and portions 194 which areinclined with respect to the axis of the shaft 181. Rollers 195journalled upon pins 196 carried by the shell 191 project into thenotches 193 and ride upon the inclined surfaces 194. A half-shellportion 197 having an outer cylindrical surface is provided with arectangular groove 198 into which projects a portion'of the shaft 181.Shell portion 197 is fastened to the shaft 181 by means of screws 199.When the shell portions 191 and 197 are in the position as shown in Fig.1, their outer cylindrical surfaces form a substantially continuouscylindrical surface upon which the paper and wire are wound. The shellportions 191 and 197 are provided with port-ions 200 and 201 which whenin the position as shown in Fig. 7, form a substantial continualcylindrical surface over which projects a cup-shaped member 202 which issecured to the shaft 181 by the means of a pin 203. In this manner themovement of one end of the shell portion 191 away from the shaft 181 islimited. The movement of the other end of the shell portion '191 awayfrom the shaft 181 is limited by the engagement of the half-ring member188 or- 189 with the groove 190. It is apparent that when the nut 187 isturned in such a manner as to be, moved toward the left hand end ofthebar 181 as viewed in Fig. '17, the nut will move the upper shell section191 relative to the shaft 181 and lower shell section 197 releasing thepressure on the rollers 195 and permltting the shell portion to approacheach other. When'this occurs it is vapparent that the cross-sectionalarea of the spindle 180 wjll be reduced, thus facilitating the reoval ofthe coils which are wound upon the spindle.

Arbor driving plate.

In order that the arbor 180 may be turned with the head stock shaft 53,the shaft .181"

is provided with a disc 205 having a hole, 206 which receives a plunger207 supported by a face plate 208 fined upon'the shaft 53. The plunger207 is mounted within a bushing 209 carried by the face plate 208, andthe plunger 207 is yieldingly pressed in a direction to the right asviewed in Fig.4, by means of a spring 210\pressing against a shoulderformed on the plunger 207 and against a plate 211 fastened to .the faceplate 208 and through which the plunger 207 passes. It will be apparenttherefore that when power is'applied to the pulley 57, and when theclutch members 54 and 56 are in engagement, the arbor 180 will berotated. The shaft 53 is also provided with a pinion 212 by means ofwhich the shaft 53 may be turned when said pinion is engaged by gearingto be described, in the following paragraph.

Paper feeding and cutting mechanism.

Referring particularly to Figs. 6, 7 and 9, 220 and 221 design-ate shaftbrackets which are mounted upon the base 50 and secured thereto bymeansof screws 222 and 223. Brackets 220 and 221 support for rotationtheshaft 224. Referringto Fig. 9 in which the hand wheelshaft assemblyisshown, shaft 224 carries a nut shifting cam, driving gear 225, a paperfeed roll driving gear 226, arbor. driving gear 227, shear cams 228 and229, counter-driving gear 230 and the hand wheel 231. The base 50supports a bracket 232 which carries a bearing 233 in which the righthand end of the shaft 224 is j ournalled.

. The gears 226 and 227 are mutilated, as

shown in Figs. 10 and 11. When the shaft 224 is in the home position,gears 226 and 227 and the cams 228 and 229 will be in the position shownin Figs. 5, 10 and 11. The cams 228 and 229 are provided with shallownotches 235 which in the home position'of the shaft 224 occupy positionsvertically above the axis of the shaft 224.

As shown in Fig. '3 the gear 225 meshes be moved out of engagement withthe feed screw 125 and into engagement with the feed screw 120. J I

Referring more particularly to Fig. 7, 250 designates a stationary shearblade. mounted upon brackets 220 and 221 and supportin a shelf 251 whichserves. to support t e paper as it leaves the rolls 238 and 239, and todirect the paper across the upper surface of the shear blade 250. Themovable shear, blade 252 which, cooperates with the shear blade 250 ismounted upon shear blade blocks 253 and 254, which are mounted forvertical movement upon screws 255 and 256, respectively, carried bybrackets 220 and 221 respectively. Blocks 253 and 254 are provided withcam followers 257 and 258 -which cooperate with shear cams 228 and 229,respectively. A shear block tie bar 259 is secured at either end uponthe shear blocks 253 and 254 and is provided with holes through whichthe bolts 255 and 256 may extend. Adjusting screws 260 pass through theshear blade 252 and into the tie bar 259, and springs 262 are interposedbetween the blade 252 and the tie bar 259. Springs 261 are interposedbetween' the heads of screws 260 and the sharpened edge of the blade 252may be maintained in correct relation with the sharpened edge of theblade 250, Screws 263 and 264, having threaded engagement with brackets220 and 221, respectively, are employed for the purpose of adjusting theblade 250 relative to the blade 252. Springs the tie bar 259 may beadjusted, and the 1 265 and 266 cooperate with the heads of bolts'255and 256 respectively and with the upper surface of tie bar 259, in orderto maintain the cam followers 257 and 258 in operative relation with theshear cams 228 and 229 respectively.

To prevent the edge of paper moving upwardly with the upward movement ofthe shear blade 252, a paper retaining bar 267 I is mounted upon theblade 250 but separated therefrom by spacers 268 and 269. Spacer 269 hasan upstanding leg 269 against which the shear252 bears, in order thatinterference with the edge of the blade 250 will be prevented. 1

, 0027 separating provisions.

* When a plurality of layers of insulating paper have been wound uponthe spindle,

a tube of paper is formed which must be divided in order that the coilsmay be separated from each other on being removed from the spindle. Themechanism for dividing the insulation will now be described.

'Referring more particularly to Figs. 5, 9

and 12 arins 270 and 271 are loosely journalled upon the shaft 224 andthe free ends thereof are provided with notches272 as shown-in Fig. '5.These notched ends of the arms 270 and 271 hook over a rod 273 which isloosely journalled upon arms 274 and 275. These arms 274 and 275 are inturn loosely journalled upon a rod 276. The ends of rod 276 normallyrest upon inclined surfaces 277 and 278 formed upon bars 279 and 280respectively. Clamped upon the rod 273 are a plurality of knife bladeholders 281, each of which carries a knife blade 282 which is clamped tothe holder 281 by means of a clamping bar 283 and a screw 284. Sleeves285, 286 and 287 serve to space the knife blade holders 281 at the cor-I thereby causin rect distances from one another and from the arms 274and 275. The location of the knife blade holders 281 is such that thecutting ed es of the knife blades are located in 'a inement with thegrooves 180 of the spindle 180. Nuts 288 and 289 cooperate with thethreaded end portions of the rod 273 and serve to maintain the 'partssupported upon the rod 273 in correct position. The lower surfaces ofthe freeend of the knife blade holders 281 rest upon the upper ends 'ofadjusting screws 290 which have screw threaded engagement with ad-'justing screw bar 291 which is secured at each end thereof upon the arms270 and 271. A lever'292 is mounted upon the rod 276. B reference toFig; 5 it will be seen that w en the outer free end of the lever 292 israised, the upper surface ofv said lever 292 will engage one of .thesleeves 286 car-.

ried by the rod 273. This movement of the lever 292 will cause therod'273 to move upwardly and the bars 27 0 and 271 to swing upwardlyabout the shaft 224 as an axis,

the knife blades 282. While the movements referred to are taking placethe outer ends of the rod 276 are ridin' upwardly on the inclinedsurfaces 277 an 2780f the blocks 279 and 280. Thus it will be seen thatthe arms 270 and 274, and the arms 271 and 275 cooperate together as thelinks of toggle oints. Dhereforeit is apparent that very little force.need be exerted :upwardly upon the outer free end of the lever 292 inorder to obtain suflicient pressure at the knife blades to force thelatter through several thicknesses of pa er wound upon the spindle. Theupward movement of lever 292 is limited by the rod 276 striking againstscrews 294 passing through bars 27 9 and 2 80. The form of mechanism forseparating the gan upward movement of,

coils just described provides for the ready removal of apart of saidmechanism. from the coil winding machine. When it is desired to renewthe knife blades 282 it is only necessary to remove the arbor 180 fromthe machine and then to swing the arms 27 0 and 271 upwardly so that thefree ends are out of engagement with the rod 273. When this Y is donethe rods 273 and 27 6 and the parts attached thereto may be removed fromthe machine, in orderthat the knives may be replaced. By removing thearbor, the knife blade'holders 281 can be swung toward the front of themachine to .a more accessible position, without removing any of .theseparating knife mechanism from the machine.

.(Munter and signal.

Referring to Fig. 13, 300 designates a counter shaft bracket securedupon the base 50 and providing a bearing for a counter shaft 301 uponwhich is formed a gear 302 which meshes with thecounter drivinggear 230carried by the shaft 224. (See Fig. 9.) The. shaft 301' carries a post303 upon which is mounted a. split sleeve 304 1 a hole 317 which islocated concentrically with the sleeve 304 but out of contact therewith.Referring to Figs. 2 and 13, the dial '310 carries a stud 318 located inthe path of the hand 305. Referring to Fig. 13 the dial 310 is showndiagrammatically connected by wire 320 with a hell or other signalingdevice 321, connected with a source of current 322 which is grounded bymeans of wire 323 upon the bracket 300. It is'apparent therefore thatwhenever the hand 305 strikes against the stud 31 8 an electric circuitwill be formed causing bell 321 to ring. The use I of this signal will.be described in connection with the description of the operation of themachine.

"The base 50 may be provided with an oil receptacle 330 from which asmall quantity of oil may be removed by means of brush 331 and appliedto the tail stock pin 174, in order to reduce friction between thespindle 180 and the pin 174.

Paper roll holder and term'mt device.

' A device for holding the roll of insulating paper maintaining therequired amount of tensioning thereon will now be described- Mountedupon the bench 40 and to the rear of the frame/50, see Figs. 5, 21 and22, are

the nuts 358, 358 it will be seen that a roll of paper may he slipped onthe shaft 354 with one end of the roll touching one of the nuts 357,357. By applying the nuts 358, 358 the roll of paper 359 (see also Fig.5) may be clamped in position upon the shaft 354.

One end of the shaft 354 is provided with a groove 360 which receives ashoulder 361 provided on a screw 362 which has screw threaded engagementwith a bracket 363 supported by the frame 351. The screw 362 is providedwith a hand wheel 364 by means of which the nut may be turned to efiectlongitudinal movement of the shaft 354. The adjustment described permitsof aligning the paper roll with the arbor 180. A set screw 365 havingscrew threaded engage.-

ment with the bracket 363 serves to maintain, the adjusting screw 362 infixed position,

Secured upon the'other end of the shaft 354 is a grooved band wheel 366around which,

passes a leather band 367. Said band 367 passes around a stud 368 fixedupon the bracket 350. The ends of the band 367 are united b meansof asprin 369. Referring to igs. 5, and 21 it wi 1 be seen that the paperwhich is represented by the dot and dash line 370 iswound oil the rollof paper 359 in such a direction that the roll rotates in a clockwisedirection, It will be seen that the spring 369 islocated back of avertical plane passingthrough the axis of shaft 354 and stud 368. Thisarrangement is necessary in order that the clockwise rotation of thepaper roll 359 may be yieldingly restrained whereby to place asubstantially uniform tension on the paper 370as it is unwound from thepaper roll, resulting in keeping the paper stretched and w free fromwrinkles.

"Wire umm'mdiing mechanism. The device for-unwinding the wire from thereels upon which the wire is wound when received from the manufacturerwill now be described. Referring to Figs. 5, 21 and 22 the brackets 350and 351 support a platform 380, upon which a, plurality of reels 381 ofwire may be mounted.

A tubular post 382 is fixed in a vertical position upon the platform380, and supports for rotation a spindle 383. Said spindle 383 isprovided with a shoulder 384 which rests upon a felt washer 385 which inturn is supported upon the upper surface .mounted for rotation a cu ofthe post 382. The lower end of the spin:

dle 383 is provided with screw threads which are engaged by nuts'386 and387. A felt washer 388 and a metallicwasher 389 are mounted upon thespindle383 and are held in position by means of the spring 390.

It is apparent that .by adjusting the nut 386 i the tension on thespring 390 may be varied whereby to vary the friction between thespindle 383 and the post 382. It is de-.

sirable that a certain amount of friction shall exist between thespindle 383 and the' winding speeds, than where there is a metal.

'to metalfriction contact between the spindle and the post. i The upperend of the spindle 383 is provided witha pin 392 extending transversely-of the spindle and beyond the cylindrical surface thereof A thimble 393fits over the upper end of the spindle 383 and is pro-.

vided with notches 394 which receive the projecting ends'of the pin392.In this manner the thimble 393 is made to turn with the spindle 383.

Thethinible 393 duced upper end portion 397 upon which is 398. The cup398 carries a pin 399 to wh1ch one end of a coil spring 400 isconnected. The other end" of the spring 400 is connected with thereduced portion 397 of the thimble 393. A cover 401 cooperates with thecup 398 to form an inclosure for the spring. A screw 402 having threadedengagement with the reduced portion 397 of the thimble 393 maintains thecover 401 and cup 398 in position upon the thimble 393. A finger 405 issecured atone end upon the cup 398 and at its'lower end carriesga fork406 in which is rotatably mounted? a I wheel 407, said wheel beinglocated substantially midway between the ends of the 'reel 381. Thedevice for unwinding the wire from the reels which has just beendescribed is not our joint invention but is described and claimed in theco-pending application of Samuel Rogers, Patent No. 1,348,321, patentedAugust 3, 1920.

A dog 408 is secured upon the platform 380 adjacent the post 382 andpierces the lower wooden end of the reel 381, inorder to prevent saidreel from turning upon the post 382.

is provided with a reito Referring to Fig. 21 a plurality of posts A 410are shown mounted upon the platform 380, each of these postsbeinglocated in a the device which is to follow, this arrangement isnecessary in order that the turning couple acting upon the spindle 383may be constant.

Control when wire breaks.

A leaf spring 415 is mounted at one end upon the bracket 411 and theouter free end thereof engages pin 416 carried by the tension wheelframe 412. This spring 415 tends to move the tension wheel 413 in anupward direction. The spring 415 has an electrical connection with thebracket 411. 'A spring contact 417 is mounted upon the bracket 411 butinsulated therefrom.

'Referrin to Fig. 5 the line 420 designates the wire eading off from thespool 381 around the guide wheel 407 and upwardly around the tensionwheel'413 then downwardly around the wire guide roll 163 and then aroundthe arbor 180. On account of the. friction maintained between thespindle 383 and the post 382, as previously described, suflicienttension will be maintained on the wire 420 to maintain the springs 415and 417 out of engagement as shown in Figs.

5- and 21, and MA, in Fig. 23. If, however. the wire 420 should breakthe spring 415 will be released and cause the tension roll frame 412 tomove upwardly to the position shown at B in Fig. 23. When this occursthefollowing circuit will be established battery 425, wire 426,'magnet 427,Wire 428 the dotted line position as shown in Fig. 23,

current will flow through the lever '65 through switch contact 429 toground and thence back through the post 410 which is grounded, andacross contacts 415'and 417 and thence by wire 430 on to battery Whenthis circuit has been established an armature 431 will be attracted bythe magnet 427 and cause a closing of contacts 432 and 433. Whencontacts 432'and 433 are closed current from a 110 volt light circuit orother source of electric current willflow through the solenoid 76 andthereby cause the attraction of'solenoid armature 75. This together andthe wire threaded around the tension roll 413, thus restoring conditionsto normal and permitting the contacts 415 and 417 to be maintained outofengagement by the tension on the wire.

The electric circuits described permit not only the use of an availablehigh voltage current for operating the solenoidmagnet,

but the complete insulation of such a current from the machine, wherebythe operator will be protected from shock.

A motor 500 shown diagrammatically in Fig. 3 is connected by means of abelt 507 with the pulley 56 for'the purposeofdriving the shaft 53 whenthe clutch members are engaged.

ode of operation.

The operation of the machine will now be described.

Let it be assumed first that the reels of wire are in position uponotheplatform 380 eration can readily be performed since the release can beswung upwardly away from tli e'roll 238. The drawing of the end of thepaper is continued until the edge of the paper passes overthe shelf 251and up to the cuttin edge of the blade 250. Then the upper roll 239 isallowed to descend upon the paper and to hold it in the posit1ondescribed.- The tail stock feed screw 173 is turned so as to recede thetail stock pin 174 from the head stock spindle 53. The arbor".

180 is placed in position with its conical seat 182 resting on thetapered end 53 of the head stock spindle 53. The arbor 180 is rotatedmanually until the spring pressed plunger 207 snaps into the hole 206 1nthe disc 205. A driving connection between the spindle 53 and the arbor180 is thus effected. The tail stock screw 172 is then rotated until thetail stock pin .17 4 enters the conical seat 183 in the end of the arbor180.

A portion of wire is unwound from each reel and trained around thewheels 407, 413

.and 163 and is fastened to a hook 181 -secured upon the arbor shaft 181(see Fig. 20).

The next operation is to rotate the hand wheel 231 360 in a clock-wisedirection as shown by the arrow 510 in Fig. 13 and the arrow 511 in Fig.2. While this manual operation of the hand wheel 231 is taking place thefollowing events will take place automatically. Referring to Figs. 1 and5 it will be seen that the teeth on the gear 226 will enga c with thepaper feed pinion.

236 causing t e same to rotate in a clockwise directlon as viewed inFig. 5. The

vdot and dash line 370 in Fig. 5.

paper will fed forward over theedge of the knife 250" until the edge ofthe paper strikes the wires 420 which are backwardly and upwardlyinclinedgfrom the arbor 180. The position of the end of the paper atthis instant is represented diagrammatically by a dot and dash line 370.Before the edge of the paper reaches the wires 420 the gear 227 willhave moved sufliciently so that a portion of its tooth periphery willengage the gear 212 causing the-arbor 180 to ro-v positions of the arborand paper guiding.

means as the diameter of the coil is increased. After a certain.movement of gear 212, the gear tooth portion of the periphery of gear226 will be free of the paper feed pinion 236, and the feed rolls willbe free to turn independently of any gearing while the arbor 180continues to rotate further upon further rotation of the handwheel'shaft 224 to wrap up the required number of layers of paper uponitself. At this time a mutilated portion of the gear 227 will comeadjacent to the gear212 and the motion of the arbor 180 will cease.Then, as the shaft 224 continues to rotate the movable shear blade 252will descend into cooperation with the stationary blade 250 and shearoff the paper. Then while the blade 252 is ascending to normal position,another tooth portion of the gear 227 will engage with the gear 212 andWill rotate the arbor 180 in a clock-Wise direction in order to wrap upthe length of paper included betweenthe arbor 1-80 and the shear blades250 and 252. When the shaft 224 has been rotated the entire 360 thenotches 235 in the cams 228 and 229 will have arrived at apositionvertically above the center of the shaft 224, whereupon withstandinameter of t e coil being wound upon the the cam followers 257 and 258will drop into said notches under the influence of the springs 265 and266 and yieldingly lock the shaft 224 in home position. At thistimeanother multilated portion of the gear 227 will have come adjacent tothe gear 212, thereby permitting the arbor to turn free of any gearingconnected with thehand wheel shaft 224.

In this manner the required number of turns of paper have been wrappedabout the arbor 180. Since the rotation of the arbor determines theamount of paper wrapped thereon, it is apparaent that, notthe constantlyincreasing diarbor, the number of turns and hence the thickness of theinsulation between the several layers of wire will remain the same.

While the movements described in the foregoing paragraph have been.taking place, the gear 225 (See Fig. 3) .will have turned the gear 139in a clock-wise direction, whereby to rotate the cam 140, 180. Let it beassumed to start with that the nut 130 occupies the position 1 30shownin Fig. 1.

The arbor has now been prepared for wrapping on a layer of wire, and atthistime a few turns of wire have been wrapped around the insulatingpaper as the paper was being wrapped upon the arbor 180. The

next operation is to move the hand lever 65 previously mentioned thepulley 56 is being continuously rotated by the motor 500 through themedium of the belt 507. -The arbor 180 will then be rotated in aclockwise direction as viewed in Fig. 5. Clockwise motions as viewed inFig. 3, will be lmpa-rted to the screw 125 by means of the gearing 102,121, 123 and 124. The turning of screw 125 will cause the nut 130 tomove from its position 130 to the full line position as shown in Fig. 1and still further to the dotted line position 130 2 When this occurs alug 4'40 carried by the nut 130 will engage the stop nuts 99 and causethe screw 97 to move in a direction from left to right as viewed inFig. 1. The screw 97 will at the same time impart motion to the lever 93causing it to rotate in a counter-clock Jwise direction as viewed inFig. 1. From the lever 93' motion will be imparted through the shaft 91,the arm 90, the lever 80, and the link 83 to the lever 60 causing" saidlever 60 to rotate in a clock-wise direction as viewed in Fig. 4. Whenthis occurs the clutch members 56 and 54 will 'be disengaged and thearbor 180 will cease wheels 163 through the rod 133, cross bar 156 andguide wheel shaft 160. The arbor is now ready for the application of theinsulating paper.

Since the arbor 180 has been stopped automatically in the mannerdescribed the handlever 65 may be released since its presence in. theposition as shown in Fig. 4 will not cause the arbor to rotate anyfurther un-

